Ecotoxicological and environmental study of the Drôme river : application to the survival of the otter
In the late 1950s and 1960s, a steep decline in otter (Lutra lutra) populations took place throughout most of Western Europe. Many different explanations for this decline have been presented; e.g. hunting, habitat destruction, eutrophication, and toxic chemicals. A factor seems to occupy a dominatin...
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Other Authors: | , , , |
Format: | Doctoral or Postdoctoral Thesis |
Language: | French |
Published: |
HAL CCSD
2005
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Subjects: | |
Online Access: | https://theses.hal.science/tel-00275129 https://theses.hal.science/tel-00275129/document https://theses.hal.science/tel-00275129/file/These_Richard-mazet.pdf |